- Assessor's Office
- Attorney's Office
- Building Department
- Central Fire Alarm
- Comptroller's Office
- Contract Compliance & Administration
- Councilmembers
- Department of Information Technology
- Economic Development
- Emergency Services & Safety
- Engineering Department
- Finance Department
- Highway Department
- Human Resources
- Office of the Supervisor
- Planning Department
- Police Department
- Senior Services
- Town Clerk
- Town Court
- Youth and Recreation Department
Informal Assessment Reviews
We are now accepting Informal Review Applications. Property owners can mail in or drop off the applications now through March 27th. Please see below for instructions and forms. Note, the Informal Review does NOT require submission of the RP-524 form. Decisions will be sent by early May. If you still disagree, you can file a grievance with the Board of Assessment review, which will take place May 26th, 2026. Call the Assessor's office after May 1st for more information.
Challenge Your Assessment2025 Final Assessment Roll
Please note the entire Assessment Roll below is a large file. The download may take several minutes. The Assessment Roll has been separated into four (4) smaller sections (ordered by SBL #).
- 2025 Final Assessment Roll (entire file, approximately 60 mb)
- 2025 Final Assessment Roll a (Village of Williamsvile only)
- 2025 Final Assessment Roll b (SBL 4.00-1-2 through 42.10-8-8)
- 2025 Final Assessment Roll c (SBL 42.10-8-9 through 67.56-1-28)
- 2025 Final Assessment Roll d (SBL 67.56-1-29 through 82.09-7-5.11)
2025 Tentative Assessment Roll
Please note the entire Assessment Roll below is a large file. The download may take several minutes. The Assessment Roll has been separated into four (4) smaller sections (ordered by SBL #).
- 2025 Tentative Assessment Roll (entire file, approximately 60 mb)
- 2025 Tentative Assessment Roll a (Village of Williamsvile only)
- 2025 Tentative Assessment Roll b (SBL 4.00-1-2 through 42.10-8-12)
- 2025 Tentative Assessment Roll c (SBL 42.10-8-13 through 67.56-2-2)
- 2025 Tentative Assessment Roll d (SBL 67.56-2-3 through 82.09-7-5.11)
2026-2027 Exemption Information
We are now accepting exemption applications for 2026-2027 exemptions
Assessor Property Tax Exemption 2025
2024 Final Assessment Roll
The 2024 Final Assessment Roll is now available. Due the large size of the file, the download may take several minutes.
Press Release - Enhanced STAR & Low Income Senior Exemptions
Assessor's Office
5583 Main St
Williamsville,
NY
14221
(716) 631-7038
8:00 AM - 4:00 PM (Mon-Fri)
Assessor's Office
Murphy, Emily
Assessor
716-631-7038
Erzkus, Cara
Deputy Assessor
716-631-7038
Arnold, Bonnie
Real Property Appraisal Technician
716-631-7038
Fickhesen, Liz
Real Property Appraiser
716-631-7038
Hennard, Jeff
Senior Real Property Appraiser
716-631-7038
Lucia, Beth
Clerk - PT
716-631-7038
McKinnon, Jill
Clerk Typist
716-631-7038
Watt, Diane
Clerk Typist
716-631-7038
Deadline March 2 - Senior Citizen Low Income Exemption Application/Renewal
The Assessor's Office reminds homeowners that Senior Citizen Low Income Exemption Applications and Renewals are Due Monday, March 2, 2026. Visit the link below for Low Income Senior Exemption Renewal Information, Exemption Application, Renewal Application, Application Instructions, Worksheet Checklist and Low Income Senior Limits. Questions? Call (716) 631-7038.
Click to view documentClick for website link